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Q 3143101943.     (i) Which is largest in size `Cu^+, Cu^(2+)` or ` Cu`, and why?
(ii) Which element in periodic table has highest I.E. (ionisation energy)?
(iii) Which element is more metallic- `Mg` or `AI` and why?
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)